<template>
    <div>
       <!-- 面包屑导航区 -->
       <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
       </el-breadcrumb>

       <!-- 卡片视图 -->
       <el-card >
           <!-- 搜索与添加按钮区域 -->
        <el-row :gutter='20'>
            <el-col :span="8">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="addDialogVisible =true">添加用户</el-button>
            </el-col>
        </el-row>

        <!-- 用户列表区域 -->
        <el-table :data="userlist" border stripe>
           <el-table-column label="#" type="index"></el-table-column>
           <el-table-column label="姓名" prop="username"></el-table-column>
           <el-table-column label="邮箱" prop="email"></el-table-column>
           <el-table-column label="电话" prop="mobile"></el-table-column>
           <el-table-column label="角色" prop="role_name"></el-table-column>
           <el-table-column label="状态" >
               <template slot-scope="scope">
                   <el-switch v-model="scope.row.mg_state"  @change="userStateChanged(scope.row)">
                   </el-switch>
               </template>
           </el-table-column>
           <el-table-column label="操作" width="180px">
               <template slot-scope="scope">
                   <!-- 修改按钮 -->
                   <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                   <!-- 删除按钮 -->
                   <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                   <!-- 分配角色按钮 -->
                   <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable="false">
                        <el-button type="warning" icon="el-icon-setting" size="mini" 
                        @click="setRole(scope.row)"></el-button>
                   </el-tooltip>                  
               </template>
           </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
        </el-pagination>
       </el-card>
       <!-- 添加用户的对话框 -->
       <el-dialog
          title="添加用户"
          :visible.sync="addDialogVisible"
          width="50%"
          @close="addDialogClosed">
          <!-- 内容主体区域 -->
          <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px" >
            <el-form-item label="用户名" prop="usersname">
            <el-input v-model="addForm.usersname"></el-input>
            </el-form-item>
            <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>
         </el-form>
          <!-- 底部区域 -->
          <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addUser">确 定</el-button>
          </span>
      </el-dialog>
      <!-- 修改用户的对话框 -->
       <el-dialog
          title="修改用户"
          :visible.sync="editDialogVisible"
          width="50%">
          <!-- 内容主体区域 -->
          <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px" >
            <el-form-item label="用户名" prop="usersname" >
            <el-input v-model="addForm.usersname" disabled></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>
          </el-form>
            <!-- 底部区域 -->
          <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo()">确 定</el-button>
          </span>
        </el-dialog>
       <!-- 分配角色的对话框 -->
       <el-dialog
         title="分配角色"
         :visible.sync="setRoleDialogVisible"
         width="50%"
         @close = "setRoleDialogClosed">
         <div>
             <p>当前的用户：{{userInfo.username}}</p>
             <p>当前的角色：{{userInfo.role_name}}</p>
             <p>当前的角色：
                 <el-select v-model="selectedRoleId" placeholder="请选择">
                   <el-option
                     v-for="item in rolesList"
                     :key="item.id"
                     :label="item.roleName"
                     :value="item.id">
                   </el-option>
                 </el-select>

             </p>
         </div>
         <span slot="footer" class="dialog-footer">
           <el-button 
           @click="setRoleDialogVisible = false">取 消</el-button>
           <el-button type="primary" 
           @click="saveRoleInfo">确 定</el-button>
         </span>
       </el-dialog>

    </div>
</template>



<script>
export default {
    data(){
        // 验证邮箱的规制
        var checkEmail = (rule,value,cb) =>{
            // 验证邮箱的正则表达式
            const regEmail =/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if(regEmail.test(value)){
            //合法的邮箱
            return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }

        // 验证手机号的规制
         var checkMobile = (rule,value,cb) =>{
            // 验证手机号的正则表达式
            const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
            if(regMobile.test(value)){
            //合法的邮箱
            return cb()
            }
            cb(new Error('请输入合法的手机号'))
        }

        return{
            // 获取用户列表的参数对象
            queryInfo:{
            query:'',
            // 当前的页数
            pagenum: 1,
            pagesize: 2
            },
            userlist:[],
            total:0,
            // 控制添加用户对话框的显示与隐藏
            addDialogVisible:false,
            // 添加用户的表单数据
            addForm:{ 
                usersname:'',
                password:'',
                email:'',
                mobile:''

            },
            addFormRules:{
                usersname:[
                    {required:true, message:'请输入用户名', trigger:'blur'},
                    {min:3, max:10, message:'用户名的长度在3~10个字符之间', trigger:'blur'}                
                    ],
                 password:[
                    {required:true, message:'请输入密码', trigger:'blur'},
                    {min:6, max:15, message:'用户名的长度在6~15个字符之间', trigger:'blur'}                
                    ],
                 email:[
                    {required:true, message:'请输入邮箱', trigger:'blur'},
                    {validator:checkEmail, trigger:'blur'}             
                    ],
                 mobile:[
                    {required:true, message:'请输入手机号', trigger:'blur'},      
                    {validator:checkMobile, trigger:'blur'}         
                    ]
            },
            editDialogVisible:false,
            // 控制分配角色对话框的显示与隐藏
            setRoleDialogVisible:false,
            // 需要被分配角色的用户信息
            userInfo:[],
            // 所有角色的数据列表
            rolesList:[],
            // 选择角色的值
            selectedRoleId:[]
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
       async getUserList(){
          const {data:res} = await this.$http.get('users', {params: this.queryInfo})
          if(res.meta.status !=200){
              return this.message.error('获取用户列表失败')
          }
          this.userlist = res.data.users
          this.total = res.data.total
          console.log(res)
        },
        // 监听pageSize改变的事件
        handleSizeChange(newSize){
            console.log(newSize)
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        // 监听页码值改变的事件
        handleCurrentChange(newPage){
            console.log(newPage)
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        // 监听switch开关状态
        async userStateChanged(userinfo){
          console.log(userinfo)
          const {data:res} = await this.$http.put (`users/${userinfo.id}/state/${userinfo.mg_state}`) 
          if(res.meta.status!== 200){
              userinfo.mg_state = !userinfo.mg_state
              return this.$message.error('更新用户状态失败！')
          }
          this.$message.success('更新用户状态成功！')
        },

        // 监听添加用户对话框的关闭对象
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        // 点击按钮，添加新用户
        addUser(){
            this.$refs.addFormRef.validate(async valid=>{
                if(!valid) return
                // 可以发起添加用户的网络请求
                const {data:res} = await this.$http.post('users', this.addForm)
                if(res.meta.status !== 201){
                    console.log(res.meta.status) //400?
                    this.$message.error('添加用户失败!')
                }
                this.$message.success('添加用户成功！')
                // 隐藏添加用户的对话框
                this.addDialogVisible = false
                // 重新获取用户列表数据
                this.getUserList()
            })
        }, 
        // 展示编辑用户对话框
        async showEditDialog(id){
            // console.log(id)
            const {data:res} = await this.$http.get('users/', id)
                if(res.meta.status !== 200){
                    this.$message.error('修改用户失败!')
                }
            this.editForm = res.data
            this.editDialogVisible = true
        },
        // 监听修改用户对话框的关闭对象
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        // 修改用户信息并提交
        editUserInfo(){
            this.$refs.addFormRef.validate(async valid=>{
                if(!valid) return
                // 可以发起修改用户的网络请求
                const {data:res} = await this.$http.put('users/'+ this.editForm.id,{
                    email:this.editForm.email,
                    mobile:this.editForm.mobile
                })
                if(res.meta.status !== 200){
                    return this.$message.error('更新用户信息失败!')
                }
                // 关闭对话框
                this.editDialogVisible = false
                // 刷新数据列表
                this.getUserList()
                // 提示修改成功
                this.message.success('修改用户信息成功！')
            })

        },
        // 根据Id删除用户的信息
        async removeUserById(id){
            // 弹框询问是否删除数据
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err)
        // 如果用户取消删除 则返回值为字符串cancel
        // 如果用户确认删除，则返回值为字符串 confirm
        // console.log(confirmResult)
        if (confirmResult !=='confirm'){
            return this.$message.info('已取消删除')
        }
        // console.log('确认了删除')
        const {data:res} = await this.$http.delete('users/', id)
                if(res.meta.status !== 200){
                    console.log(res.meta.status) //404?
                    return this.$message.error('添加用户失败!')
                }
                this.$message.success('添加用户成功！')
                // 重新获取用户列表数据
                this.getUserList()
        },
        // 展示分配角色的对话框
        async setRole(userInfo){
            this.userInfo = userInfo

            // 在展示对话框之前，获取所有角色列表
            const{data:res} = await this.$http.get('roles')
            if(res.meta.status !== 200){
                return this.$message.error('获取角色列表失败！')
            }

            this.rolesList = res.data

            this.setRoleDialogVisible = true

        },
        // 点击按钮 分配角色
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色！')
            }
            const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,
            {rid:this.selectedRoleId})

            if(res.meta.status !== 200){
                return this.$message.error('获取角色列表失败！')
            }

            this.$message.success('获取角色列表成功')

            this.getUserList()

            this.setRoleDialogVisible = false




        },
        // 监听分配角色对话框的关闭事件
        setRoleDialogClosed(){
            this.selectedRoleId = ''
            this.userInfo = {}
        }
    }
        
}



</script>

<style lang="less" scoped>

</style>
